Mold for making cork boards



A. MACKlNNON- MOLD FOR MAKING CORK BOARDS.

APPLICATION FILED MAR. 15, 1920.

1 1,361,031, Patented Dec. 7,1920.

4 $HEETS-SHEET l- (aw wanton Mc/finwav A. MAcKlNNON.

MOLD FOR MAKING CORK BOARDS.

APPLICATION FILED MAR. 15, 1920.

1,3 1,0 1, Patented Dec. 7,1920.

4 SHEETS-SHEET 2- ZELE Y I,

v MOWWO A. MAcKlNNON;

MOLD FOR MAKING CORK BOARDS.

APPLICATION FILED MAR.15, 1920.

Patented Dec. 7,1920.

4 SHEETSSHEET a.

awue mtoz A. MACKINNON.

MOLD FOR MAKING CORK BOARDS.

APPLICATION FILED MAR. 15, I920.

4 SHEETS-SHEET 4- PATENT OFFICE.

ARCHIIBALD MACKINNON, OF TUGKAHOE, NEW YORK.

MOLD FOR, MAKING CORK BOARDS.

' Application filed March 15,

To all whom it may concern:

Be it known that I, ARCHIBALD MAOKIN- NON, a subject of the King of Great Britain, residing at Tuckahoe, in the county of Westchester and State of New York, have invented certain new and useful Improvements in Molds for Making Cork Boards; and I- do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates generally to molding apparatus, and more particularly to molds for making cork boards or plates out ofgranulated cork.

One object of the invention is toprovide a mold which is divided into two or more compartments so that two or more boards or plates can be formed in the mold at the same time. The compartments may be of different sizes so that different sized boards or plates may be made at the same time.

The partitions which divide the mold into compartments have passages therethrough or are hollow and have openings registering with openings in the mold casing so that the heated air or gases of the furnace through which the mold is passed in the process of making the boards or plates passes through the partitions and heats the various boards orplates from all sides.

Another object of the invention is to provide a mold of this character having a removable top, bottom and partitions, and supplemental detachable wall members carrying partition guides so that the size and arrangement of the compartments in the mold can be varied. I

Another object of the invention is to generally improve upon devices of this class by the provision of an extremely simple, strong,. durable and inexpensive construction, one which will be efficient andreliable in operation, and well adapted to the purpose ,for which it is designe With these and other objects. in view, the invention consists of the novel features of construction, and combination and arran ement of parts as will be hereinafter, fu 1y described and claimed. v I

In the accompanying" drawings forming a Specification of Letters Patent. Patented Dec. "7, 1920.

1920. Serial No. 865,887.

part of the specification and in which similar reference characters designate like parts throughout the several views Figure 1 is a perspective viewof a mold constructed in accordance with this invention, the top and top retaining bars being removed from the mold to illustrate the interior construction of the same.

Fig. 2 is a longitudinal sectional view through the mold.

Fig. 3 is a transverse sectional view taken on the line 33 of Fig. 2.

Fig. l is a perspective view of the casing of the mold, the partitions and bottom being removed.

Fig. 5 is a detail horizontal sectional view taken on the line 5--5 of Fig. 2.

Fig. dis a perspective view of one of the partitions.

Fig. 7 is a similar view of a portion of a -modified form of partition.

Fig. 8 is a perspective view of the mold illustrating a pair of detachable supplemental end wall plates used in connection with the same.

Fig. 9 is a horizontal sectional view taken on the line 9-9 of Fig. 8.

Fig. 10 is a perspective. View of one of the supplemental end wall plates.

Fig. 11 is a similar View of a modification of the supplemental end wall plates.

The improved mold consists of a rectangular casing 1, which may be made of sheet or cast metal, but which is preferably as shown made of cast metal. The casing 1 is open at the top and provided at its bottom with an inwardly extending flange or ledge 2, and if desired, with a transverse bar 3. This flange or ledge 2 and transverse bar 3 forms the support for a removable bottom 4, the latter being provided with a number of longitudinally extending openings 5. The upper and lower edges of the end walls of the casing 1 are enlarged in thickness and the upper'edges of all of the walls are provided with horizontal flanges 6. The end walls of the casing have a number of vertically disposed openings 7 therein which as hereinafter explained, form guides for the ends of erably closed by means of blocks 10, the latter serving to maintain the walls of the partitions in their spaced parallel relation. The lower edges of the partitions are left open, while the upper edges of the same are provided with openings 11. Extending longitudinally through the partitions 9 along their upper edges and directly beneath the openings 11 so as to close the same and resting upon notches in the upper ends of the blocks 10 are removable rods 12.

' fits into the casing 1 an The form of partition illustrated in Fig. 7 of the drawings comprises a pair of spaced walls 13 having formed integrally therewith webs 14 which hold them in their,

spaced relation. This form of partition is open at both the top and bottomsedges.

The numeral 15 desi nates a top which 5 rests on the upper edges of the partitions 9. This top 15 is provided with a number of longitudinally extending rows of openings 16. The openings. 16 register with the openings 11 in the partitions 9, and the openings 5 in the bottom 4 register with the open lower edges of the latter so that a passage through the partitions is provided. After the top 15 is In place, bars 17 are inserted through the aforesaid openings 8. These bars 17 extend I transversely across the casing l-over the top 15 and hold the latter in place.

As clearly illustrated by Figs. 1, 3, 4 and 5 of the drawings, the casing 1 is construct ed so as to receive three partitions which are spaced apart and from the walls of the caslng which are'parallel to them so as to divide said casing into four equal compartments. If it is desired to divide the easing into more or less compartments supplemental and removable walls 18 are used. These supplemental walls 18 are preferably made from sheet metal and comprise plates which are shaped to conform to the shape of the end walls of the casing and are provided at their upper edges with lateral flanges 19 which hook over the upper edges of the end walls of the casing. The partition guides of the supplemental walls 18 are in the form of parallel flanges 20 which are struck from the plates; In this form of device the partitions 9 are of the'proper length so that they will nicely fit between the supplemental walls 18, and the bottom 4 and top 15 have their openings placed so as to register with the openings at the upper and lower edges of the partitions.

WVhen it is desired to divide the casing into a number of compartments of unequal size, supple1nentalend walls 21 are used.

.In these end walls 21 the partition guides are spaced unequal distances from their ed es and from themselves.

Tn using the mold the proper bottom 4 is placed in the casing upon the flange or ledge 2, and the partitions are disposed in place with their ends fitted in the openings 7, or in case the supplemental walls 18 01 .21 are used, the partitions 9 are fitted in the guides of the latter. Granulated cork is then placed in the compartments formed by the partitions and compressed by suitable means until the'mold is filled to the level of the upper edges of the partitions. The rods 12 are, during these operations, disposed in the partition so that none of the granulated cork will pass through the openings 11. The top 15 is then placed in the casing and forced down until it rests on the partitions. The bars 17 are then passed through the openings 8 so as to hold the top in place. The entire mold containing the granulated cork in the state of compression is then passed into a suitable furnace, the heat from which bakes the cork and causes it to adhere so that boards or plates are formed. The heated air or gases of the furnace pass through the partitions so that the heat is applied to the various sides of the plates or boards being formed in the mold.

From the foregoing description taken in connection with the accompanying draw-" ings, the construction, use and operation of the device will be readily understood.

Various changes in form, proportion, and in the minor details of construction may be resorted to without departing'from the spirit of the invention as defined in the claims.

I claim:

1. A mold of the class described comprising a Y casing having open portions therein, and a partition in said casing dividing the latter into compartments and having a passage therethrough communicating with sa1d epen portions.

"2. mold of the class described comprising a casing having openings therein, and a partition in said casing dividing the latter into compartments and having a passage therethrough communicating with said openin s. I

g. A mold of the class described comprising acasing having openings therein, and a hollow partition in said casing dividing the latter into compartments and having openings therein registering with the openings of said casing.

4. A mold of the class described compris- ,ing .a casing having top and bottom plates provided with openings, and a hollow partition in said casing having openings in its upper and lower edges registering with the openings in said top and bottom respectively.

5. A mold of the class described comprising a casing having partition receiving guides in opposite walls thereof and having its top and bottom provided with openings, and a hollow partition in said casing with its ends fitted in said guides, the upper and lower edges of said partition having openings therein registering with the openings in said top and bottom respectively.

6. A mold of the class described comprising a casing having vertical openings in opposite walls thereof, a removable top and bottom for said casing having openings therein, and a removable partition in said casing having its ends extended through the openings in said opposite walls thereof, said partition having openings in its edges registering with the openings in said top and bottom.

7 A mold of'the class described having guides in opposite walls thereof and openings in its bottom, a removable'partition in said casing having openings in its upper and lower edges, the openings in the lower edges of said partition registering with the openings in the bottom of said casing, removable means for closing the openings in the upper edges of said partition, and a removable top for said casing having openings registering with the openings in the upper edges of said partition. 7

8. A mold of the class described comprising a casing having openings in opposite walls thereof and openings in its bottom, a removable partition disposed in said casing and having its ends fitted in the openings in the Walls of the latter, said partition having openings in its upper and lower edges,

the openings in the lower edge of the said partition registering with the openings in the bottom of said caslng, a removable rod extending longitudinally through said partition adjacent the openings'in the upper edge thereof for closing said openings, and a removable top for-said casing having openings therein registering with the openings in the upper edges of said partition.

. 9. A mold of the class described comprising a casing havingvertical openings in opposite walls thereof and having openings in its bottom, a removable hollow partition disposed in said casing and having its ends fitted in the openings in the walls of the latter, said partition being made of a plate of metal bent upon itself on a longitudinally extending line and having its intermediate port-ion provided with a series of openings, said plate having blocks disposed between its portions to hold the latter in spaced relation, the lower edge of said partition being open and registering with the openings in said bottom, a removable rod extending longitudinally through said partition adjacent the upper edge of the same, said rod resting upon the upper ends of said blocks and closing the openings in the upper edge of said partition, and a removable top disposed in said casing resting upon said partition and having openings therein registering with the openings in the upper edge of the latter.

10. A mold of the class described comprising a casing having openings in its top and bottom, supplemental walls removably disposed with said casing and resting against opposite avalls of the latter, parallel flanges struck inwardly from said supplemental walls to form guides, and a removable hollow partition disposed in said casing and having its ends engaged with said guides, said partition having openings in its upper and lower edges registering with the openings in said top and bottom respectively.

In testimony whereof I have hereunto set my hand.

ARCHIBALD MACKINNON. 

